/**
 * 会员服务使用申请 hook：拉取本人的服务申请记录，并提供提交申请的能力。
 * 权益兑现载体——已开通会员提交后由律师/顾问跟进。
 */
import { useCallback, useEffect, useState } from 'react';
import { createLegalServiceRequest, fetchLegalServiceRequests } from '../api';
import type { LegalServiceRequest } from '../types';

export interface LegalServiceRequestsState {
  /** 申请记录（倒序） */
  requests: LegalServiceRequest[];
  /** 首次加载中 */
  loading: boolean;
  /** 错误对象 */
  error: Error | null;
  /** 提交中 */
  submitting: boolean;
  /** 刷新申请记录 */
  refresh: () => Promise<void>;
  /** 提交申请 */
  submit: (serviceId: string, content: string) => Promise<LegalServiceRequest>;
}

export function useLegalServiceRequests(): LegalServiceRequestsState {
  const [requests, setRequests] = useState<LegalServiceRequest[]>([]);
  const [loading, setLoading] = useState(true);
  const [error, setError] = useState<Error | null>(null);
  const [submitting, setSubmitting] = useState(false);

  const refresh = useCallback(async () => {
    try {
      setLoading(true);
      setError(null);
      setRequests(await fetchLegalServiceRequests());
    } catch (e) {
      setError(e as Error);
    } finally {
      setLoading(false);
    }
  }, []);

  useEffect(() => {
    refresh();
  }, [refresh]);

  const submit = useCallback(async (serviceId: string, content: string) => {
    setSubmitting(true);
    try {
      const created = await createLegalServiceRequest(serviceId, content);
      setRequests((prev) => [created, ...prev]);
      return created;
    } finally {
      setSubmitting(false);
    }
  }, []);

  return { requests, loading, error, submitting, refresh, submit };
}